4.b.
Answer: See below.
Step-by-step explanation:
<h2><u>
For the equation f(x) = 2x</u></h2>
3.a. f(6) means use x = 6 in the equation f(x) = 2x
so f(6) would be f(6)= 2(6)
<u>f(6) = 12</u>
3.b. f(-11) = 2(-11)
<u>f(-11) = -22</u>
3.c. f(2.75) = 2(2.75)
<u>f(2.75) = 5.5</u>
3.d. This is turned around. We are told f(x)=20, so what would x need to be for f(x) to be 20? Since f(x) = 2x, we can say 20 = 2x. Therefore x = 10
f(10) = 20
<u>The rest of (3) are solved in the same fasion.h</u>
<u></u>
<h2><u>
For the equation f(x)= 5x+50</u></h2>
4.a. f(7) = 5(7)+50
<u>f(7) = 85</u>
4.b. f(-12)
f(-12) = 5*(-12)+50
<u>f(-12) = -60</u>
<u></u>
Continue in the same fashion for these types of problems.
Answer:
not sure of this answer, but -1215 as area, perimiter 24???
Step-by-step explanation:
I dont know how to do this math i just multiplied the number points and added them T_T im in middle school T_T
I think the answer is B because Annuity is a fixed sum of money paid each year
Answer:
None
Step-by-step explanation:
For option A
3-2r/4=10 and combining like terms and re-arranging we obtain
-2r/4=10-3
-2r/4=7
r=7*4/-2=-14
For option B
3/4-2r=10 then combining like terms and re-arranging
-2r=10-3/4
-2r=9 1/4
r=(9 1/4)/-2=-4.625
For option C
3(r-4)=10 dividing both sides by three first
r-4=10/3
r=10/3+4= 7 1/3
For option D
3-r/4=10
-r/4=10-3
-r/4=7
r=7*-4=-28
Therefore, none of the options yields r=-17
